Answers

2016-08-14T13:21:37+08:00
0,-4,0,-2,-0,-2
-2,0,0,-2,0,-2,36
0,-8,0,7,0,-2,2,2,0,-5
-3,0,-1,-2,,0,,-7,0,2,-4
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2016-08-15T16:26:06+08:00
What is the roof of problem number one?
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